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Diffstat (limited to 'cppu/source/uno/sequence.cxx')
| -rw-r--r-- | cppu/source/uno/sequence.cxx | 913 |
1 files changed, 913 insertions, 0 deletions
diff --git a/cppu/source/uno/sequence.cxx b/cppu/source/uno/sequence.cxx new file mode 100644 index 000000000..72d3e3ead --- /dev/null +++ b/cppu/source/uno/sequence.cxx @@ -0,0 +1,913 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#include <sal/config.h> + +#include <cassert> +#include <string.h> + +#include <osl/diagnose.h> +#include <osl/interlck.h> +#include <typelib/typedescription.h> +#include <uno/data.h> +#include <uno/sequence2.h> + +#include "constr.hxx" +#include "copy.hxx" +#include "destr.hxx" + + +using namespace cppu; + +namespace cppu +{ + + +static uno_Sequence * reallocSeq( + uno_Sequence * pReallocate, std::size_t nElementSize, sal_Int32 nElements ) +{ + OSL_ASSERT( nElements >= 0 ); + uno_Sequence * pNew = nullptr; + sal_uInt32 nSize = calcSeqMemSize( nElementSize, nElements ); + if (nSize > 0) + { + if (pReallocate == nullptr) + { + pNew = static_cast<uno_Sequence *>(std::malloc( nSize )); + } + else + { + pNew = static_cast<uno_Sequence *>(std::realloc( pReallocate, nSize )); + } + if (pNew != nullptr) + { + // header init + pNew->nRefCount = 1; + pNew->nElements = nElements; + } + } + return pNew; +} + + +static bool idefaultConstructElements( + uno_Sequence ** ppSeq, + typelib_TypeDescriptionReference * pElementType, + sal_Int32 nStartIndex, sal_Int32 nStopIndex, + sal_Int32 nAlloc ) // >= 0 means (re)alloc memory for nAlloc elements +{ + uno_Sequence * pSeq = *ppSeq; + switch (pElementType->eTypeClass) + { + case typelib_TypeClass_CHAR: + if (nAlloc >= 0) + pSeq = reallocSeq( pSeq, sizeof(sal_Unicode), nAlloc ); + if (pSeq != nullptr) + { + memset( + pSeq->elements + (sizeof(sal_Unicode) * nStartIndex), + 0, + sizeof(sal_Unicode) * (nStopIndex - nStartIndex) ); + } + break; + case typelib_TypeClass_BOOLEAN: + if (nAlloc >= 0) + pSeq = reallocSeq( pSeq, sizeof(sal_Bool), nAlloc ); + if (pSeq != nullptr) + { + memset( + pSeq->elements + (sizeof(sal_Bool) * nStartIndex), + 0, + sizeof(sal_Bool) * (nStopIndex - nStartIndex) ); + } + break; + case typelib_TypeClass_BYTE: + if (nAlloc >= 0) + pSeq = reallocSeq( pSeq, sizeof(sal_Int8), nAlloc ); + if (pSeq != nullptr) + { + memset( + pSeq->elements + (sizeof(sal_Int8) * nStartIndex), + 0, + sizeof(sal_Int8) * (nStopIndex - nStartIndex) ); + } + break; + case typelib_TypeClass_SHORT: + case typelib_TypeClass_UNSIGNED_SHORT: + if (nAlloc >= 0) + pSeq = reallocSeq( pSeq, sizeof(sal_Int16), nAlloc ); + if (pSeq != nullptr) + { + memset( + pSeq->elements + (sizeof(sal_Int16) * nStartIndex), + 0, + sizeof(sal_Int16) * (nStopIndex - nStartIndex) ); + } + break; + case typelib_TypeClass_LONG: + case typelib_TypeClass_UNSIGNED_LONG: + if (nAlloc >= 0) + pSeq = reallocSeq( pSeq, sizeof(sal_Int32), nAlloc ); + if (pSeq != nullptr) + { + memset( + pSeq->elements + (sizeof(sal_Int32) * nStartIndex), + 0, + sizeof(sal_Int32) * (nStopIndex - nStartIndex) ); + } + break; + case typelib_TypeClass_HYPER: + case typelib_TypeClass_UNSIGNED_HYPER: + if (nAlloc >= 0) + pSeq = reallocSeq( pSeq, sizeof(sal_Int64), nAlloc ); + if (pSeq != nullptr) + { + memset( + pSeq->elements + (sizeof(sal_Int64) * nStartIndex), + 0, + sizeof(sal_Int64) * (nStopIndex - nStartIndex) ); + } + break; + case typelib_TypeClass_FLOAT: + { + if (nAlloc >= 0) + pSeq = reallocSeq( pSeq, sizeof(float), nAlloc ); + if (pSeq != nullptr) + { + float * pElements = reinterpret_cast<float *>(pSeq->elements); + for ( sal_Int32 nPos = nStartIndex; nPos < nStopIndex; ++nPos ) + { + pElements[nPos] = 0.0; + } + } + break; + } + case typelib_TypeClass_DOUBLE: + { + if (nAlloc >= 0) + pSeq = reallocSeq( pSeq, sizeof(double), nAlloc ); + if (pSeq != nullptr) + { + double * pElements = reinterpret_cast<double *>(pSeq->elements); + for ( sal_Int32 nPos = nStartIndex; nPos < nStopIndex; ++nPos ) + { + pElements[nPos] = 0.0; + } + } + break; + } + case typelib_TypeClass_STRING: + { + if (nAlloc >= 0) + pSeq = reallocSeq( pSeq, sizeof(rtl_uString *), nAlloc ); + if (pSeq != nullptr) + { + rtl_uString ** pElements = reinterpret_cast<rtl_uString **>(pSeq->elements); + for ( sal_Int32 nPos = nStartIndex; nPos < nStopIndex; ++nPos ) + { + pElements[nPos] = nullptr; + rtl_uString_new( &pElements[nPos] ); + } + } + break; + } + case typelib_TypeClass_TYPE: + { + if (nAlloc >= 0) + { + pSeq = reallocSeq( + pSeq, sizeof(typelib_TypeDescriptionReference *), nAlloc ); + } + if (pSeq != nullptr) + { + typelib_TypeDescriptionReference ** pElements = + reinterpret_cast<typelib_TypeDescriptionReference **>(pSeq->elements); + for ( sal_Int32 nPos = nStartIndex; nPos < nStopIndex; ++nPos ) + { + pElements[nPos] = _getVoidType(); + } + } + break; + } + case typelib_TypeClass_ANY: + { + if (nAlloc >= 0) + pSeq = reallocSeq( pSeq, sizeof(uno_Any), nAlloc ); + if (pSeq != nullptr) + { + uno_Any * pElements = reinterpret_cast<uno_Any *>(pSeq->elements); + for ( sal_Int32 nPos = nStartIndex; nPos < nStopIndex; ++nPos ) + { + CONSTRUCT_EMPTY_ANY( &pElements[nPos] ); + } + } + break; + } + case typelib_TypeClass_ENUM: + { + if (nAlloc >= 0) + pSeq = reallocSeq( pSeq, sizeof(sal_Int32), nAlloc ); + if (pSeq != nullptr) + { + typelib_TypeDescription * pElementTypeDescr = nullptr; + TYPELIB_DANGER_GET( &pElementTypeDescr, pElementType ); + sal_Int32 eEnum = + reinterpret_cast<typelib_EnumTypeDescription *>( + pElementTypeDescr)->nDefaultEnumValue; + TYPELIB_DANGER_RELEASE( pElementTypeDescr ); + + sal_Int32 * pElements = reinterpret_cast<sal_Int32 *>(pSeq->elements); + for ( sal_Int32 nPos = nStartIndex; nPos < nStopIndex; ++nPos ) + { + pElements[nPos] = eEnum; + } + } + break; + } + case typelib_TypeClass_STRUCT: + case typelib_TypeClass_EXCEPTION: + { + typelib_TypeDescription * pElementTypeDescr = nullptr; + TYPELIB_DANGER_GET( &pElementTypeDescr, pElementType ); + sal_Int32 nElementSize = pElementTypeDescr->nSize; + + if (nAlloc >= 0) + pSeq = reallocSeq( pSeq, nElementSize, nAlloc ); + if (pSeq != nullptr) + { + char * pElements = pSeq->elements; + for ( sal_Int32 nPos = nStartIndex; nPos < nStopIndex; ++nPos ) + { + _defaultConstructStruct( + pElements + (nElementSize * nPos), + reinterpret_cast<typelib_CompoundTypeDescription *>(pElementTypeDescr) ); + } + } + + TYPELIB_DANGER_RELEASE( pElementTypeDescr ); + break; + } + case typelib_TypeClass_SEQUENCE: + { + if (nAlloc >= 0) + { + // coverity[suspicious_sizeof : FALSE] - sizeof(uno_Sequence*) is correct here + pSeq = reallocSeq(pSeq, sizeof(uno_Sequence*), nAlloc); + } + if (pSeq != nullptr) + { + uno_Sequence ** pElements = + reinterpret_cast<uno_Sequence **>(pSeq->elements); + for ( sal_Int32 nPos = nStartIndex; nPos < nStopIndex; ++nPos ) + { + pElements[nPos] = createEmptySequence(); + } + } + break; + } + case typelib_TypeClass_INTERFACE: // either C++ or C-UNO interface + if (nAlloc >= 0) + pSeq = reallocSeq( pSeq, sizeof(void *), nAlloc ); + if (pSeq != nullptr) + { + memset( + pSeq->elements + (sizeof(void *) * nStartIndex), + 0, + sizeof(void *) * (nStopIndex - nStartIndex) ); + } + break; + default: + OSL_FAIL( "### unexpected element type!" ); + pSeq = nullptr; + break; + } + + if (pSeq == nullptr) + { + OSL_ASSERT( nAlloc >= 0 ); // must have been an allocation failure + return false; + } + *ppSeq = pSeq; + return true; +} + + +static bool icopyConstructFromElements( + uno_Sequence ** ppSeq, void * pSourceElements, + typelib_TypeDescriptionReference * pElementType, + sal_Int32 nStopIndex, + uno_AcquireFunc acquire, + sal_Int32 nAlloc ) +{ + uno_Sequence * pSeq = *ppSeq; + switch (pElementType->eTypeClass) + { + case typelib_TypeClass_CHAR: + pSeq = reallocSeq( pSeq, sizeof(sal_Unicode), nAlloc ); + if (pSeq != nullptr) + { + memcpy( + pSeq->elements, + pSourceElements, + sizeof(sal_Unicode) * nStopIndex ); + } + break; + case typelib_TypeClass_BOOLEAN: + pSeq = reallocSeq( pSeq, sizeof(sal_Bool), nAlloc ); + if (pSeq != nullptr) + { + memcpy( + pSeq->elements, + pSourceElements, + sizeof(sal_Bool) * nStopIndex ); + } + break; + case typelib_TypeClass_BYTE: + pSeq = reallocSeq( pSeq, sizeof(sal_Int8), nAlloc ); + if (pSeq != nullptr) + { + memcpy( + pSeq->elements, + pSourceElements, + sizeof(sal_Int8) * nStopIndex ); + } + break; + case typelib_TypeClass_SHORT: + case typelib_TypeClass_UNSIGNED_SHORT: + pSeq = reallocSeq( pSeq, sizeof(sal_Int16), nAlloc ); + if (pSeq != nullptr) + { + memcpy( + pSeq->elements, + pSourceElements, + sizeof(sal_Int16) * nStopIndex ); + } + break; + case typelib_TypeClass_LONG: + case typelib_TypeClass_UNSIGNED_LONG: + pSeq = reallocSeq( pSeq, sizeof(sal_Int32), nAlloc ); + if (pSeq != nullptr) + { + memcpy( + pSeq->elements, + pSourceElements, + sizeof(sal_Int32) * nStopIndex ); + } + break; + case typelib_TypeClass_HYPER: + case typelib_TypeClass_UNSIGNED_HYPER: + pSeq = reallocSeq( pSeq, sizeof(sal_Int64), nAlloc ); + if (pSeq != nullptr) + { + memcpy( + pSeq->elements, + pSourceElements, + sizeof(sal_Int64) * nStopIndex ); + } + break; + case typelib_TypeClass_FLOAT: + pSeq = reallocSeq( pSeq, sizeof(float), nAlloc ); + if (pSeq != nullptr) + { + memcpy( + pSeq->elements, + pSourceElements, + sizeof(float) * nStopIndex ); + } + break; + case typelib_TypeClass_DOUBLE: + pSeq = reallocSeq( pSeq, sizeof(double), nAlloc ); + if (pSeq != nullptr) + { + memcpy( + pSeq->elements, + pSourceElements, + sizeof(double) * nStopIndex ); + } + break; + case typelib_TypeClass_ENUM: + pSeq = reallocSeq( pSeq, sizeof(sal_Int32), nAlloc ); + if (pSeq != nullptr) + { + memcpy( + pSeq->elements, + pSourceElements, + sizeof(sal_Int32) * nStopIndex ); + } + break; + case typelib_TypeClass_STRING: + { + pSeq = reallocSeq( pSeq, sizeof(rtl_uString *), nAlloc ); + if (pSeq != nullptr) + { + rtl_uString ** pDestElements = reinterpret_cast<rtl_uString **>(pSeq->elements); + for ( sal_Int32 nPos = 0; nPos < nStopIndex; ++nPos ) + { + // This code tends to trigger coverity's overrun-buffer-arg warning + // coverity[index_parm_via_loop_bound] - https://communities.coverity.com/thread/2993 + ::rtl_uString_acquire( + static_cast<rtl_uString **>(pSourceElements)[nPos] ); + pDestElements[nPos] = static_cast<rtl_uString **>(pSourceElements)[nPos]; + } + } + break; + } + case typelib_TypeClass_TYPE: + { + pSeq = reallocSeq( + pSeq, sizeof(typelib_TypeDescriptionReference *), nAlloc ); + if (pSeq != nullptr) + { + typelib_TypeDescriptionReference ** pDestElements = + reinterpret_cast<typelib_TypeDescriptionReference **>(pSeq->elements); + for ( sal_Int32 nPos = 0; nPos < nStopIndex; ++nPos ) + { + TYPE_ACQUIRE( + static_cast<typelib_TypeDescriptionReference **>( + pSourceElements)[nPos] ); + pDestElements[nPos] = + static_cast<typelib_TypeDescriptionReference **>( + pSourceElements)[nPos]; + } + } + break; + } + case typelib_TypeClass_ANY: + { + pSeq = reallocSeq( pSeq, sizeof(uno_Any), nAlloc ); + if (pSeq != nullptr) + { + uno_Any * pDestElements = reinterpret_cast<uno_Any *>(pSeq->elements); + for ( sal_Int32 nPos = 0; nPos < nStopIndex; ++nPos ) + { + uno_Any * pSource = static_cast<uno_Any *>(pSourceElements) + nPos; + _copyConstructAny( + &pDestElements[nPos], + pSource->pData, + pSource->pType, nullptr, + acquire, nullptr ); + } + } + break; + } + case typelib_TypeClass_STRUCT: + case typelib_TypeClass_EXCEPTION: + { + typelib_TypeDescription * pElementTypeDescr = nullptr; + TYPELIB_DANGER_GET( &pElementTypeDescr, pElementType ); + sal_Int32 nElementSize = pElementTypeDescr->nSize; + + pSeq = reallocSeq( pSeq, nElementSize, nAlloc ); + if (pSeq != nullptr) + { + char * pDestElements = pSeq->elements; + + typelib_CompoundTypeDescription * pTypeDescr = + reinterpret_cast<typelib_CompoundTypeDescription *>(pElementTypeDescr); + for ( sal_Int32 nPos = 0; nPos < nStopIndex; ++nPos ) + { + char * pDest = + pDestElements + (nElementSize * nPos); + char * pSource = + static_cast<char *>(pSourceElements) + (nElementSize * nPos); + + if (pTypeDescr->pBaseTypeDescription) + { + // copy base value + _copyConstructStruct( + pDest, pSource, + pTypeDescr->pBaseTypeDescription, acquire, nullptr ); + } + + // then copy members + typelib_TypeDescriptionReference ** ppTypeRefs = + pTypeDescr->ppTypeRefs; + sal_Int32 * pMemberOffsets = pTypeDescr->pMemberOffsets; + sal_Int32 nDescr = pTypeDescr->nMembers; + + while (nDescr--) + { + ::uno_type_copyData( + pDest + pMemberOffsets[nDescr], + pSource + pMemberOffsets[nDescr], + ppTypeRefs[nDescr], acquire ); + } + } + } + + TYPELIB_DANGER_RELEASE( pElementTypeDescr ); + break; + } + case typelib_TypeClass_SEQUENCE: // sequence of sequence + { + // coverity[suspicious_sizeof : FALSE] - sizeof(uno_Sequence*) is correct here + pSeq = reallocSeq(pSeq, sizeof(uno_Sequence*), nAlloc); + if (pSeq != nullptr) + { + typelib_TypeDescription * pElementTypeDescr = nullptr; + TYPELIB_DANGER_GET( &pElementTypeDescr, pElementType ); + typelib_TypeDescriptionReference * pSeqElementType = + reinterpret_cast<typelib_IndirectTypeDescription *>(pElementTypeDescr)->pType; + uno_Sequence ** pDestElements = reinterpret_cast<uno_Sequence **>(pSeq->elements); + for ( sal_Int32 nPos = 0; nPos < nStopIndex; ++nPos ) + { + uno_Sequence * pNew = icopyConstructSequence( + static_cast<uno_Sequence **>(pSourceElements)[nPos], + pSeqElementType, acquire, nullptr ); + OSL_ASSERT( pNew != nullptr ); + // ought never be a memory allocation problem, + // because of reference counted sequence handles + pDestElements[ nPos ] = pNew; + } + TYPELIB_DANGER_RELEASE( pElementTypeDescr ); + } + break; + } + case typelib_TypeClass_INTERFACE: + { + pSeq = reallocSeq( pSeq, sizeof(void *), nAlloc ); + if (pSeq != nullptr) + { + void ** pDestElements = reinterpret_cast<void **>(pSeq->elements); + for ( sal_Int32 nPos = 0; nPos < nStopIndex; ++nPos ) + { + pDestElements[nPos] = static_cast<void **>(pSourceElements)[nPos]; + _acquire( pDestElements[nPos], acquire ); + } + } + break; + } + default: + OSL_FAIL( "### unexpected element type!" ); + pSeq = nullptr; + break; + } + + if (pSeq == nullptr) + { + return false; // allocation failure + } + *ppSeq = pSeq; + return true; +} + + +static bool ireallocSequence( + uno_Sequence ** ppSequence, + typelib_TypeDescriptionReference * pElementType, + sal_Int32 nSize, + uno_AcquireFunc acquire, uno_ReleaseFunc release ) +{ + bool ret = true; + uno_Sequence * pSeq = *ppSequence; + sal_Int32 nElements = pSeq->nElements; + + if (pSeq->nRefCount > 1 || + // not mem-copyable elements? + typelib_TypeClass_ANY == pElementType->eTypeClass || + typelib_TypeClass_STRUCT == pElementType->eTypeClass || + typelib_TypeClass_EXCEPTION == pElementType->eTypeClass) + { + // split sequence and construct new one from scratch + uno_Sequence * pNew = nullptr; + + sal_Int32 nRest = nSize - nElements; + sal_Int32 nCopy = (nRest > 0 ? nElements : nSize); + + if (nCopy >= 0) + { + ret = icopyConstructFromElements( + &pNew, pSeq->elements, pElementType, + nCopy, acquire, + nSize ); // alloc to nSize + } + if (ret && nRest > 0) + { + ret = idefaultConstructElements( + &pNew, pElementType, + nCopy, nSize, + nCopy >= 0 ? -1 /* no mem allocation */ : nSize ); + } + + if (ret) + { + // destruct sequence + if (osl_atomic_decrement( &pSeq->nRefCount ) == 0) + { + if (nElements > 0) + { + idestructElements( + pSeq->elements, pElementType, + 0, nElements, release ); + } + std::free( pSeq ); + } + *ppSequence = pNew; + } + } + else + { + OSL_ASSERT( pSeq->nRefCount == 1 ); + if (nSize > nElements) // default construct the rest + { + ret = idefaultConstructElements( + ppSequence, pElementType, + nElements, nSize, + nSize ); // realloc to nSize + } + else // or destruct the rest and realloc mem + { + sal_Int32 nElementSize = idestructElements( + pSeq->elements, pElementType, + nSize, nElements, release ); + // warning: it is assumed that the following will never fail, + // else this leads to a sequence null handle + *ppSequence = reallocSeq( pSeq, nElementSize, nSize ); + OSL_ASSERT( *ppSequence != nullptr ); + ret = (*ppSequence != nullptr); + } + } + + return ret; +} + +} + +extern "C" +{ + + +sal_Bool SAL_CALL uno_type_sequence_construct( + uno_Sequence ** ppSequence, typelib_TypeDescriptionReference * pType, + void * pElements, sal_Int32 len, + uno_AcquireFunc acquire ) + SAL_THROW_EXTERN_C() +{ + assert( len >= 0 ); + bool ret; + if (len) + { + typelib_TypeDescription * pTypeDescr = nullptr; + TYPELIB_DANGER_GET( &pTypeDescr, pType ); + + typelib_TypeDescriptionReference * pElementType = + reinterpret_cast<typelib_IndirectTypeDescription *>(pTypeDescr)->pType; + + *ppSequence = nullptr; + if (pElements == nullptr) + { + ret = idefaultConstructElements( + ppSequence, pElementType, + 0, len, + len ); // alloc to len + } + else + { + ret = icopyConstructFromElements( + ppSequence, pElements, pElementType, + len, acquire, + len ); // alloc to len + } + + TYPELIB_DANGER_RELEASE( pTypeDescr ); + } + else + { + *ppSequence = createEmptySequence(); + ret = true; + } + + OSL_ASSERT( (*ppSequence != nullptr) == ret ); + return ret; +} + + +sal_Bool SAL_CALL uno_sequence_construct( + uno_Sequence ** ppSequence, typelib_TypeDescription * pTypeDescr, + void * pElements, sal_Int32 len, + uno_AcquireFunc acquire ) + SAL_THROW_EXTERN_C() +{ + bool ret; + if (len > 0) + { + typelib_TypeDescriptionReference * pElementType = + reinterpret_cast<typelib_IndirectTypeDescription *>(pTypeDescr)->pType; + + *ppSequence = nullptr; + if (pElements == nullptr) + { + ret = idefaultConstructElements( + ppSequence, pElementType, + 0, len, + len ); // alloc to len + } + else + { + ret = icopyConstructFromElements( + ppSequence, pElements, pElementType, + len, acquire, + len ); // alloc to len + } + } + else + { + *ppSequence = createEmptySequence(); + ret = true; + } + + OSL_ASSERT( (*ppSequence != nullptr) == ret ); + return ret; +} + + +sal_Bool SAL_CALL uno_type_sequence_realloc( + uno_Sequence ** ppSequence, typelib_TypeDescriptionReference * pType, + sal_Int32 nSize, uno_AcquireFunc acquire, uno_ReleaseFunc release ) + SAL_THROW_EXTERN_C() +{ + assert(ppSequence && "### null ptr!"); + assert(nSize >= 0 && "### new size must be at least 0!"); + + bool ret = true; + if (nSize != (*ppSequence)->nElements) + { + typelib_TypeDescription * pTypeDescr = nullptr; + TYPELIB_DANGER_GET( &pTypeDescr, pType ); + ret = ireallocSequence( + ppSequence, reinterpret_cast<typelib_IndirectTypeDescription *>(pTypeDescr)->pType, + nSize, acquire, release ); + TYPELIB_DANGER_RELEASE( pTypeDescr ); + } + return ret; +} + + +sal_Bool SAL_CALL uno_sequence_realloc( + uno_Sequence ** ppSequence, typelib_TypeDescription * pTypeDescr, + sal_Int32 nSize, uno_AcquireFunc acquire, uno_ReleaseFunc release ) + SAL_THROW_EXTERN_C() +{ + OSL_ENSURE( ppSequence, "### null ptr!" ); + OSL_ENSURE( nSize >= 0, "### new size must be at least 0!" ); + + bool ret = true; + if (nSize != (*ppSequence)->nElements) + { + ret = ireallocSequence( + ppSequence, reinterpret_cast<typelib_IndirectTypeDescription *>(pTypeDescr)->pType, + nSize, acquire, release ); + } + return ret; +} + + +sal_Bool SAL_CALL uno_type_sequence_reference2One( + uno_Sequence ** ppSequence, + typelib_TypeDescriptionReference * pType, + uno_AcquireFunc acquire, uno_ReleaseFunc release ) + SAL_THROW_EXTERN_C() +{ + OSL_ENSURE( ppSequence, "### null ptr!" ); + bool ret = true; + uno_Sequence * pSequence = *ppSequence; + if (pSequence->nRefCount > 1) + { + uno_Sequence * pNew = nullptr; + if (pSequence->nElements > 0) + { + typelib_TypeDescription * pTypeDescr = nullptr; + TYPELIB_DANGER_GET( &pTypeDescr, pType ); + + ret = icopyConstructFromElements( + &pNew, pSequence->elements, + reinterpret_cast<typelib_IndirectTypeDescription *>(pTypeDescr)->pType, + pSequence->nElements, acquire, + pSequence->nElements ); // alloc nElements + if (ret) + { + idestructSequence( *ppSequence, pType, pTypeDescr, release ); + *ppSequence = pNew; + } + + TYPELIB_DANGER_RELEASE( pTypeDescr ); + } + else + { + pNew = allocSeq( 0, 0 ); + ret = (pNew != nullptr); + if (ret) + { + // easy destruction of empty sequence: + if (osl_atomic_decrement( &pSequence->nRefCount ) == 0) + std::free( pSequence ); + *ppSequence = pNew; + } + } + } + return ret; +} + + +sal_Bool SAL_CALL uno_sequence_reference2One( + uno_Sequence ** ppSequence, + typelib_TypeDescription * pTypeDescr, + uno_AcquireFunc acquire, uno_ReleaseFunc release ) + SAL_THROW_EXTERN_C() +{ + OSL_ENSURE( ppSequence, "### null ptr!" ); + bool ret = true; + uno_Sequence * pSequence = *ppSequence; + if (pSequence->nRefCount > 1) + { + uno_Sequence * pNew = nullptr; + if (pSequence->nElements > 0) + { + ret = icopyConstructFromElements( + &pNew, pSequence->elements, + reinterpret_cast<typelib_IndirectTypeDescription *>(pTypeDescr)->pType, + pSequence->nElements, acquire, + pSequence->nElements ); // alloc nElements + if (ret) + { + idestructSequence( + pSequence, pTypeDescr->pWeakRef, pTypeDescr, release ); + *ppSequence = pNew; + } + } + else + { + pNew = allocSeq( 0, 0 ); + ret = (pNew != nullptr); + if (ret) + { + // easy destruction of empty sequence: + if (osl_atomic_decrement( &pSequence->nRefCount ) == 0) + std::free( pSequence ); + *ppSequence = pNew; + } + } + + } + return ret; +} + + +void SAL_CALL uno_sequence_assign( + uno_Sequence ** ppDest, + uno_Sequence * pSource, + typelib_TypeDescription * pTypeDescr, + uno_ReleaseFunc release ) + SAL_THROW_EXTERN_C() +{ + if (*ppDest != pSource) + { + osl_atomic_increment( &pSource->nRefCount ); + idestructSequence( *ppDest, pTypeDescr->pWeakRef, pTypeDescr, release ); + *ppDest = pSource; + } +} + + +void SAL_CALL uno_type_sequence_assign( + uno_Sequence ** ppDest, + uno_Sequence * pSource, + typelib_TypeDescriptionReference * pType, + uno_ReleaseFunc release ) + SAL_THROW_EXTERN_C() +{ + if (*ppDest != pSource) + { + osl_atomic_increment( &pSource->nRefCount ); + idestructSequence( *ppDest, pType, nullptr, release ); + *ppDest = pSource; + } +} + +void uno_type_sequence_destroy( + uno_Sequence * sequence, typelib_TypeDescriptionReference * type, + uno_ReleaseFunc release) + SAL_THROW_EXTERN_C() +{ + idestroySequence(sequence, type, nullptr, release); +} + +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |